Definition of "cutthroat" []

• A murderer, especially one who cuts throats. (noun)
• An unprincipled, ruthless person. (noun)
• A cutthroat trout. (noun)
• Cruel; murderous. (adjective)
• Relentless or merciless in competition: a cutthroat business. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The cutthroat trout of Rosebud Creek, Montana, the type locality for the name cutthroat trout, have been totally replaced by brook, brown, and rainbow trout."
• "If I'm not mistaken the cutthroat is the only true trout to America."
• "More miles of free flowing rivers than any other state, the mountain cutthroat streams of other western states, along with Sea Run Steelhead and Salmon."